Loom.



E. JAMESON.

Patented June 18, 1912.

UNITED STATES 4PATENT OFFICE.

ROBERT JAMIESON, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPAN I,

OF HOPEDALE, MASSACHUSETTS, A CORPORATION 0F MAINE.

LOOM.

To all vwhomvit may mmv'rn i Bv it known-that I. Roiinirr J.\.\iii:so.\'. a

Specicatlon of Letters Patent.

Application filed March 29,

citizen of the Uniti-d Sta-tes, and rvsidvnt of i' panying drawing. isa sporitii'ation. likeA for ith ohjwt tliil produrtion ot` rii'y l iiiiplo l 1 .2 will gradually dosi-ruil. tlnir tootliid porniians -t'or stopping: tlu` looni autonnitirally when a |ii'iilrtvrniiniil quantity of i'loth has liion wound upon thi` oloth roll or lirain. thi' voiitrollinpr moans lit-ingr rapahli olquick and rasy adjustment for ditl'oront ipiantitiihI ot i-loth wound upon thix roll. and rvadily appliifzlhlil to looms now iii uso.

Tho novel f'raturis of my mvcntion will he fully doerrilwd in tho suhjoini-il spi-ritt j ration and {'lartioularhiy pointi-d out in thv;

. loom, i have utiliziil tlii'iu'to itl'iit thil stoppagv of thi` loom autoinatii'all)Y wlun a l'ol lowing ilainis.

Figure t is a front oli-ration. hrokin out liitwin lliix loom nidos. of a sullii-iint portion of :i loom with my prisriit inrontion 1 embodied thcriin: Fig. is a transvvrsisci-.tional (li-tail` on thvl linov 2 3, Fig. l, looking toward thi' loft, showing the parts which aro hroufght into (-iipiiration to @lfm-t.

thi` operation of tho-knook-otl' rod at tho proper time; Fig. 3 is a similar view, hut

:showinrr tho relativi` position of thc parts whrn thi.` opiriition of tlii ,knock-ofi' rod has hi-i-n ill'i-iti'il.

ln thi` drawing. Fig. t. thi' cloth roll l journalvd in upright supports, L slidahlcl l i l lonnitudinall)- in lxid guido 3. thil roar,

laws ol' thil supports having raik tot-th tlu-ri-on niooliing'with pinioiis t fast on thi' horizontal slial't 5 niountiil in tixiil lioarings t on thil guidis. and tho spring i' voilid mounted on thil 'shaft und rotatable i'i-lativoly tliiroto.4 said worin goat' hiring hi-ld from rotation hy ongagrniont with a worin .l whin thi. looui is in opvration. :iri` of rom inon and woll known ronstrurtion` and :irisuhstantially as in llnitid Stati-.NI latint No.

610,636 grantril to Northrop Siptoinhii' l-i'.v

1898. 'l`hi,l lshipper ttl to otl'i-it thi` opi-ration of :i usual stopping instrniiiintzility.

5 may lio :i rollt-i' or otlirr quil. in tliipath` `warp comml into view.

Patented June 1,8, 1912. serial No. 687,104. i

(not shown) tho horizontal knock-off rodtion4 actinglf through thr pinions -l to slowly rifvolw thi` v-hat`t Si in thi` diiirtioii of thi` arrow t5. Fig. L. .gradually windingr up thol Spring i'. wliiih laiti-r riwists thi dosi-ont of tho supports L and maintains thi` roll of i-loth prrssvd firmly hut vivldingly against. thi* taki--iip or sund roll As thi` sliat't 5 and knorloolf rod 'll ai'i in pai':illili. |ii and naar nach othrr. in :i woll known typtl of prriloti-rininid length or quantity of rloth has lit-0n wound upon tho roll l. .Qo that it is unnoi'issaiv l'or tho wiavir to pa)v ('loso :it tcntion to thi` loom whin a fut-niark on tho 'l'o this and tho huh lt' of a radially oxtiinli'il tripping' lini gel' 17 is fixidly hi-ld upon thil shal't I in an)r (.lisiriil position of angular :nl iustna-nt h v n suitahlv lsot sri-ow th'. tho tingi-r haw-ing ith` free oni] oll'srt latin-:illy and proriili-il with a iani portion ttl lhown as triangular, l"ij r.\. 2 :ind Il. with ikl api-x toward tho shaft .'i. .\laiiil`o. tl v. a thi` roll olI cloth li ilii-i'iasis in lianwtvr ll| tripping.Y tiiigrr will laI inorid through :in ari'. tlurain portion ltt travi-lili;r tlii'iiulgli :i iiriularl)l riirrvd pzitli.

ot' mori-mont ol' ihr i-:iui portion I!) of :iid trippiii; r iingi-r. l\ho\\'n lrr lig. l tlnprojia'tion Il :iiiil ruin portion lil :iri turnril towziril i-:iili otliii` :ilul tliiir rrlatiri posilioml illiiSti'ati-il in l"if i. l :irthown in sido iliratioii in Fig. 1.

ll:i\ii|g' wt tho trippingr lingvr propoi'ly it will laA apparint tlizit hon thishaft 5 titl Sli

lltl

ltltl -armjs sulicient to turn the rod 11 in the cloth roll 1, the angular being practically proportionate to the didirection lof arrow 24, Fig. 2, and through the bentV arm 14 the shipper is released and the loomqisstopped when the rod 11 has been turned into the posit-ion shown in 'he eater the arc through which the finger l moves before engaging the arm 22 the larger will be the quant-ityof cloth woundV upon the roll, and conversely, the less the are of movement ofsaid tripping linger the smaller will be the quantity of clothfwound. The angular adjustment of the tripping finger 17 thus provides for stopping the loom when a, desired quantity o1 length of cloth has been wound on the motion of the shaft ameter of the roll of-clot-h.

Any necessary adjustment between the A tripping finger and the arm 22 on. the knockraised and the roll 1 is tureand those parte are oil rod 1s easily and quickly effected, as both of Said members are adjustable, and the simplicity of the device is apparent, just two parts being added to the usual loom strueo the simplest vcharacter and construct-ion.

When the loom has been stopped the roll of cloth is removed, the weaver first having unwound the spring 7 by means of the gearing 9, 8, and a new cloth roll is inserted in'jthe supports 2, after which the spring is.; rewound, whereby the supports 2 are returned to position tdreceivefthe cloth. At this time the shaft 5 1s restored to starting posit-ion, the tripping finger moving with it back to the position shown in Figs. 1 and 2, and thereby the shipper is free to be moved to running position, such movement turning the knock-oli rod 11 back to the posit-ion shown in Figs.

V1 and 2.

It will be understood that in practice the tripping linger will always be set to stop the oom after the cut-mark is on the roll of cloth, and it makes no difference if a yard or .two of the cloth has been wound past Vthe cut-mark, for the .cloth is unwound back to the mark, cut olf at that point, and the cut of cloth is removed and a new tripping finger` and cloth roll inserted and positioned after which weavin is resumed.

When the oom has been stopped the weaver usually attempts to start it 1n order to discover the-cause of stoppage, and in this case whenan attempt is made 'te throw on the shipper it is resisted by the engagement of the tripping finger and the arm on the knock-oft' rod, as shown in Fig. 3, so that the weaver at once knows that the loom has been stopped because the desired amount of cloth has been woven.

Having fully described my invention,- what I claim `as new and desire to secure by Letters Patent is:

1. In a loom having verticall 1 movable supports for the cloth roll, a sha t revolved by movement of the supports as the cloth is wound upon the roll, and the rod for the shipper, in combination, a trip-A ping finger xedly mounted on and extended radiallyirom the shaft, and an arm secured to said rod and havin a projection in the path of movement o? said linger,

knock-off l whereby a predetermined rotative movement of said shaft will effect engagement of the the arm and cause operative rotation of the knock-off rod.

2. In a loom having means to sup ort the cloth roll, including a shaft revolved proportionally to the increase'in the diameter of the cloth wound upon the roll, and a knock-o5 rod for the shipper, in combination, a radially extended tripping finger angularly adjustable upon said shaft, and an arm fixed on the ,said rod and having a part in the path of the linger, to be struck thereby after a predetermined rotative movementl of the shaft, whereby the knockoil" rod is turned.

3. In a looinhaving means to support the cloth roll, including shaft revolved slowl as the cloth is Woun, upon the roll, and a knock-oil'I rod for the shipper, in combination, a radially extended tripping lingei` angularly adjustable on said shaft and having an-ofset cam portion, and an arm secured on `the knock-olf rod and p'rovided with a lateral projection in the path of and to vbe struck by the cam portion of the tripping finger, to operate the knock-off rod.

In testimony whereof, I have signed my name to this specification, in the presence of two-subscribing witnesses.

i ROBERT J AMIESON. Witnesses:

E. D. Ossoon, A Lonzo F RHoAnEs. 

